CA Prob Code Section 20222

Not less than 30 days before the hearing the petitioner shall do both of the following:

(a)

Cause notice of the hearing and a copy of the petition to be mailed to the trustee and each transferee against whom prorated amounts may be charged pursuant to paragraph (1) of subdivision (a) of Section 20223.

(b)

Cause a summons and a copy of the petition to be served on each transferee who may be directed to make payment of prorated amounts pursuant to paragraph (2) of subdivision (a) of Section 20223. The summons shall be in the form and shall be served in the manner prescribed in Title 5 (commencing with Section 410.10) of Part 2 of the Code of Civil Procedure.